2000, Amsterdam - Projects
Janez Langus (18)
School: Gimnazija Kranj
Hobbies: Model making, reading, listening music, hiking,
Career intention: mechanical engineer
and practical aerodynamics
I intend to design aeroplanes. In taking up this project
both the complexity of aerodynamics and the strong connection
to aeroplanes appealed greatly to me.
Aerodynamics is a very complex sub-field of physics and is very
hard to describe using theoretical equations. The use of research
instruments such as a wind tunnel is therefore required to study
aerodynamics. My approach to this theme has been both theoretical
and practical. First I learnt as much about the theory as I
could find. Then I designed and build the wind tunnel. Future
activities include actual experiments on different simple objects
like spheres, cones, cubes, etc. These tests are to show how
accurately experiments can be done on more complicated objects
like aeroplanes and car models. My final goal is to be able
to do a complete aerodynamic research of any object in my own
wind tunnel .
Mateja Simoncic (19)
School: Gimnazija Bezigrad Ljubljana
Hobbies: music, playing flute, books, sports
Career intention: food technologist
of higher alcohols in cider as affected by temperature of mash
Cider is a low-alcohol beverage made from apple juice by
means of fermentation. The quality of cider depends on apple
cultivars, processing technology and yeasts. Aroma compounds
are very important and dictate the sensorial properties of cider.
In my work I studied the synthesis of higher alcohols during
the fermentation of apple juice obtained from apple mash macerated
at three different temperatures for 24 hours. Higher alcohols
are known to negatively affect the quality of wine and cider;
emphasis should be put on reducing their synthesis during fermentation.
Maceration is usually employed to extract more aroma compounds,
soluble solids and especially the red colour in case of red
wine. According to my results lower temperatures of maceration
produce cider with better sensorial properties and a slightly
lower content of higher alcohols.